Greenpeace has called on the Australian Federal Government to end its support for research on uranium enrichment carried out by a private company at the Lucas Heights facility in Sydney. The group has released a report claiming the Silex project which uses lasers to enrich uranium has obtained unprecedented help from the Government. Spokesman James Courtney says other nations have already abandoned the technology because it is not viable. He says the project is also at odds with the Government's non-proliferation policy and sends the wrong message to Australia's neighbours. "First of all we need a full open disclosure of what is going on down there," he said. "I think the technology poses significant proliferation risks and that the Government should not be helping to facilitate this type of research at Lucas Heights and it should be having a thorough review of this company and its support of this company."Defence Minister Robert Hill has declined to comment on the Silex project. But he says any company producing enriched uranium requires an export licence from the government. "We examine that very carefully, because as I said we want to encourage high tech exports," he said. "They bring economic benefit to the country, we don't want them inadvertently diverted into a weapons of mass destruction program."